Drink mixer



May 12, 1925.

R. B. GILCHRIST DRINK MIXER F led March 8, 1922 2 Sheets-Sheet l May 12, 1925.

2 Sheets-Sheet 2 HH EEEg lllllll ll R. B. GILCHRIST DRINK MIXER FiledMarch 8, 1922 Patented May 12, 1925 UNITED STATES PATENT FFI.CE.

RAYMOND IB. GILCHRIST, 0F NEWARK, NEW JERSEY, ASSIGNOR 'IO THE GILCHRIST COMPANY, OF NEWARK, NEW JERSEY, A CORPORATION NEW JERSEY.

DRINK MIXER.

' Application filed March 8, 1922. Serial No. 541,909.

To all whom zt may concern:

Be it known that. I, RAYMOND B. GIL- CHRIST, a citizen of the United States, and

- a resident of Newark, in the county of Essex and State of New Jersey, have invented it constituents. of the drink to be mixed are usually poured into a receptacle which is generally designated a shaker, from many different containers disposed away from. the mixer. The receptacle with these constituents therein is brought to the mixer and placed in operative relation "thereto and isremoved from the machine after each mixing operation, to discharge its contents. This is rendered necessary, because so. many different ingredients and flavors are used in making drinks that they are, in nearly all cases, mixed individually. It is usually necessary to run the agitator for a considerable period to propfore, -'it is desirable that provision be made for'reta-ining the receptacle and agitator in operative relation to' permit the dispenser to perform other duties during the mixing operation. In drink'mixing, it thus becomes necessary to frequently place the receptacle containing the constituents into cooperative relation to the agitator and to withdraw it from the machine to discharge its contents and cleanse thereceptacle between mixing operations.

A desideratum in this art is to expedite and simplify the operations necessary to bring the receptacle and agitator into cooperative relation, to maintain themin such relation, in starting and stopping of the motor and the removal of the receptacle. Heretofore, inmachines whereof I am aware (excepting those exhibited in concurrently pending applications), it has been necessary in their use to manually manipnlate'the rcceptacle into operative position and-withdfaw it therefrom and to additionally perform some separate step or operation, such as lowering the motor and agitator together, or shifting the agitator and its shaft into the receptacle and relatively to the motor, or raising and locking a receptacle-support to establish and maintain cooperative relation of the receptacle and agitator or to control the operatlon of the machine. Another desideratum in this art is tosimplify the machine by dispensing with movable connections in and for the driving mechanism for the agitator.

. One object of the present invention is to provide an improved drink mixer in which pensed with and in which manual shift of the'reeeptacle is utilized to completely conthese additional operations or steps are distrol the operation of the machine and to secure itand the agitator in cooperative relation. By dispensing with the necessity of these additional steps or operations, the time of the dispenser in performing them is saved and the service is improved.

Another object of the invention is to provide a machine which is simple in construction, which may be easily and readily operated'. and which is eflicient in operation.

Another object of the invention is to provide a machine of this type in which movable connections in and for the driving meiihanism for the agitator are dispensed wit 1.

Other objects of the invention will more fully appear from the following description.

The invention consists in the several novel features hereinafter set forth and more particularly defined by tlaims at the conclusion hereof.

In the-"drawings: Fig. 1 is a vertical section of a machine embodying the invention. Fig. 2 is a front view, the motor and agitator being removed. Fig. 3 is a. section on line 33 of Fig. 1. Fig. 1- is a similar view to Fig. 1 showing the machine idle. Fig 5 is a similar view to Fig. 4 showing the receptacle tilted to unlock it for withdrawal. Fig. 6 is a detail section on line 66 of Fig. 2. Fig. 7 is a detail of a portion of the supporting standard. 4

The invention is exemplified in a machine comprising an electric motor 8 which is supported at'the upper end of a standard 9 which serves as a stationary support for the motor. Its lower end isrigid with a base 10 which is usually adapted to rest. on a counter or table. A shaft 11 secured to the rotor of the motor projects downwardly from. the motor case and is provided at its lower end with a suitable agitator 12 for mixing the constituents of a drink, as

well understood in the art. Shaft 11 is of sufiicient length, so that the agitator will reach the constituents of a, drink to be mixed near-thebottom of anopen topped receptacle 19 held below the motor and containing said constituents.

There is sufliclent clearance below the agitator to permit the receptacle 19 to 'be placed beneathand around the agitator without spillin its contents and without the necessity of lowering the agitator into the receptacle. In the present invention, the relationship between the agitator and the motor or between the agitator and the base are not varied and the receptacle only is manipulated in e'stablishing cooperative relationship between the case 15, containing an, electrical switch of usual. construction and having its members connected to control the motor 8, 1s firmly secured to the'outslde of the motor-casing.

A spring-pressed button'15 operates the switch in the case 15 to close the circuit for causingthe motor 8 to run when and while the button is pushed upwardly and to open s'aid circuit to stop the motor when the button is released. Theswitch-members in the case 15 may be of standard construction, as well understood in the art, so that detailed illustration has not been deemed. Yielding contact-strips. 16*, adaptedto enter a switch-socket. of usualnecessary.

construction, project rearwardly from the case 15, so that the necessary electrical con:

motions to supply current to the motor will be madeby pushing an ordinary conductor socket, which is adapted to receive said contact-strips and is connected by a flexible cord-conductor to a suitable source of en-.

ergy, into connected relation with said strips. v J

The inner face of the standard 9 has an arcuate front face 18, to form a vertical The arcuate face or guide 18 extends ver- .tically to guide the receptacle 19 until it guide for receptacle 19 which is adapted to be *placed against the arcuate face 18 beneath the agitator 12, said face and re-, eeptacle being conformably-curved so the receptacle, while pressed against said face, will be held against lateral movement. This construction rovides for guiding the receptacle, whi e manually supported, into operative; position around the agitator.

has been elevated sufiiciently to establish cooperatlve relation between the agitator and the contents of the receptacle. The

operator, in-lifting the receptacle, exerts bachward pressure against the receptacle, so it will be definitely controlled in its movement around the agitatorand will not strike it. The receptacle 19 is provided with an upper reinforcement or wear-band 21,-- and a lower band 21. In drink mixers of this type, it is generally necessary that the mixing operation must continuefor a con siderable period and that 'provision be made i for retaining the receptacle in operative position Without aid of the operator after it has been placed in such position. For this purpose, a ledge or shoulder 27 is formed on the standard 9-at a point where it will underlie and form a restfor the shoulder formed by the lower end 23 of band 21. Theseshoulders, when one is superposed on the other, constitute an interfitting connection directly between the receptaele and the stationary supporting standard, whereby the receptacle will be positioned and supported for an agltating operation.

A holder 24 is pivotally supported by-a pin 25 which is suitably held in standard 9 and comprises an arm or member 26 which is adapted to engage the inner periphery of the receptacle 19 adjacent the upper rim and press it backwardly, so that the shoulder 23 will be held on the shoulder,"

27 and thus cause the receptacle to be locked in its operative position. A sprin 27 is' applied to the holder 24; to normally press member 26 backwardly to .yieldingly hold the receptacle on the supporting-shoulder 27. A. stop log 28 is provided on the holder to engage the rear of the supporting standard and limit the rearward movement of the gripping member 26. 'Thedower end of member 26 is curved forwardly, as at 29, to deflect the receptacle as it is manually supported and being raised into the space between said member and the guide 18. Spring 27 also permits the holder member 26 to be swung forwardly by the receptacle a suflicient distance to permit band 21' to pass between italid the. guide 18 and above shoulder 27, as the receptacle is being raised into its operative relation'around the agitator and to be swung forwardly sufliciently to permit the shoulder 23 on the receptacle to be disengaged'fromthe shoulder 27 after an agitating operation and in the removal of the receptacle A stop 30 is provided on the holder 24 to engage the front of thestandard 9 and prevent excessive movement of the holder-member 26, so that the receptacle cannot be tilted forwardly sufliciently to strike the'agitator in releasing it and withdrawing it from the holder.

'A l ever""32 hasits lower end pivoted, at j 33, in the standard 9, and is provided with A an upper cam terminal 34 which is adapted to shift switch-button 15, upwardly into .po-

sition to close the swit'clrfor chntrolling the motor 8. This lever is, 'yieldingly held and pressed into positionto release the button 15 by a. spring 35, a stop 36 being provided to normally position this lever. The'latter is provided with a cam or projecting portion 37 which projects through a slot 38, which is formed in the standard 9, and into the path of the'receptacle 19 as it isbeing raised into and lowered from its operative position and is being guided by the arcuate guide-face 18. its a result, receptacle 19,

i as it is being thus raised, will engage the lever 32 and swing it backwardlyagainst the force of spring 35 and shift its upper end 34 to push the button 15? upwardly to close the'switch in the case 15 and auto-' *the machine is idle, the holder 27 and switch- -lever 32 will be in position shown in Fig. 5. The operator will place a receptacle 19, containing the constituents of the drink to be mixed, against the lower portion of guide 18 under the agitator 12 and then manually raise the receptacle pressing it manually against said guide to confine'it against lateral movement. As the upper margin of the receptacle encounters the lower end of the a cam 37 of the switch-lever 32, it willswing said lever backwardly and cause its upper.

end 34 to force the button 15 upwardly and into position to close the switch in case 15 and start the motor 8. As the upper end of the receptacle, encounters the lower end of the holder-member 26-, it will force it forwardly against the force of spring 27, sufiiciently to permit the wear-band to pass above the supporting. shoulder 22, as shown in Fig. 1' and then the force of said spring will press the receptacle backwardly to bring the shoulder 23 on the receptacle over a the stationary shoulder 22 and cause the receptacle to be locked in operative position,

then, the operator will release the receptacle and it will remaiulocked inoperative position. The switch lever 32 will be retained inpositi-on to close the motor switchv as long as the receptacle remains in such position. en the mixing operation has been completed, the operator will grasp the lower portion of the receptacle and swing it forward slightly to cause the shoulders on the receptacle and the standard to be disengaged or clear one another, as shown by dotted lines in Fig. 1 and, thereupon, the receptacle will be unlocked so it can be lowered below the agitator and withdrawn from guide-face 18-. .During this tilting,

stop 30 becomes active to prevent excessive forward movement of,the lower end of the receptacle which might cause it to strike the rotating agitator. When the receptacle has been lowered sufliciently to release the cam 37, spring 35 will restore the switchlever 32 and cause the spring-pressed button 15 to be lowered sufliciently to open the motor-switch and causethe motor to stop.

' The invention exemplifies a drink-mixer in which the motor and agitator are maintained in fixed relation and in which placement of the receptaclein operative position causes it to be automatically secured in position for operation; in which the receptacle is supported and locked in operative position entirely 'by .means adjacent its upper end, so that no lower support or shelf is necessary; in whichfa spring-pressed member locks the receptacle in operative position; in which placement andremoval of the receptacle cause the receptacle to be automatically locked and released and automatically control the motor switch and in which the receptacle is guided intofandout of operative position.

The invention is not to be understood as i restricted to the details set forth, since these may be modified within the scope of the appended claims, without departing from the spirit and scope of the invention. 1 Having thus described the invention, wha

I claim as new and desire to secure by Let-- ters Patent, is:

1. In a machine of the character described, the'combination of a motor, an agitator driven thereby and supportedfrom above with sufficient clearance to permit a recep table with an open top to be placedinto operative position around the agitator, and

means to grip the upper portion of the rec'eptacle to secure it in operative position.

2. In a machine of the character described, the combination of a motor, an agitator driven thereby and supported from. above with suflicient clearance to permit a receptaclewith an open top to be placed into operative position around the agitator, means to grip the upper portion of the receptacle to secure it in operative position, and. means to guide the receptacle while it '1s manually supported, to said grlppin 0' 23 means. g

3. In a machine of the character described the-- combln'ation' of a motor, an agitator driven thereby and supported from above with sufficient clearance to permit a. receptacle with' an open top to be placd into operative position around the agitator, andmeans to grip the upper portion of the receptacle to hold it in. operative position comprising a spring-pressed member and a stationary member; v I

4. In a machine of the'character described, the combination of a motoi', an agitator driven thereby and supported from above with sufiicient clearance. to permit'a receptacle with an open top to be placed into ping means.

5. In a machine of the character described, the combination of k a motor, an agitator driven thereby and supported from above, with sufficient clearance to permit 'a receptacle with an open top to be placed into operative position around the agitator, and means to lock the receptacle in operative position comprising members to engage the inner and outer sides of the upper portion of the receptacle, one of said members-being spring-pressed.

6. In a machine of the character described,- the combination of a motor, an agitator driven thereby and supported from above with sufficient clearance topermit a receptacle with an open top to be placed into operative position around the agitator, means to rock the receptacle in operative position comprising members to engage the innerand outer sides of the upper portion of the receptacle, 'one of said members being spring-pressed, and means to guide the receptacle while manuallysupported to said locking means.

7 .In a machine of the character described, the combination of a motor, an agitator driven thereby and supported from above with'suflicient clearance to permit a receptacle with an open top to be placed into operative position around the agitator,

means to automatically lock the receptacle in operative position comprising a "springpressed holding member releasable'by manipulation of the receptacle itself, and means for automatically, controlling the motoroperable by manual placement of the receptacle itself into its operative position.

8. In a'machine of the character described,

the combination of a motor, an agitator "driven thereby. and supported from above with sufiicient clearance to permit a receptacle with an open top to be placed into operative position around the agitator,"a'nd means; to automatically lock-the receptacle in operative position, means to guide the receptacle to such position while manually supported, said locking means comprising a spring-pressed holding member forthe upper margin of-the receptacle, said member I so being releasable for withdrawal of the. re-

ceptacle bymanipulation of the receptacle itself p 9. In a machine of the character described, the combination of. a motor, an agitator driven thereby and supported from above with suflici'ent clearance topermit a recepmeans to automatically lock the receptacle tacle with an open top to be placed into operative position around the agitator, and 1 means to automatically lock the receptacle in operative position when it has been manually shifted to'such position, comprising a spring-pressed member engaging the inner periphery of the upper ceptacle.

10. In a machine of the character described, the coinbination of a .motor, an agitator driven thereby and supported from above with sufficient clearance t6 permit a receptacle with an open top to be placed into operative position around the agitator, ,and.

in operative position when it has been manually shifted in such position comprising a spring-pressed member engaging the inner periphery of the'upper'portion of the recep I tacle said member being releasable by manipulation of the receptacle to'permit. its Withdrawal fromits locked position.

11. In a machine of the character described, the combination of a support, a motor, an-agitator driven .by the motor and supported from above with suflicientclearance to permit a receptacle with an open 7, top to be placed into operative position around the agitator, and means to secure the receptacle in operative position comprising :an interfitting connection between the, side of the receptacle and the support whereby the receptacle will be vertically secured. a

12. In a machineof the character de-'' scribed, the combination of a, supporting standard, a motor mounted on said standard, an agitator driven by the motor and supported from above with sufli cient clearance to permit a receptaclewith an open top the agitator, and means to secure the receptacle in operative position comprismg an -interfitting connection between the side of the receptacle and the standard whereby the the receptacle will be vertically secured.

r13. In a; machine of the character described, the combination of-a support, a motor, an agitator driven by the motor and supported from above with sufiicient clearance to permit a receptacle with an open top to be. placedinto operative positionaround the agitator, and means to' secure the receptacle in operative position comprisportion of the re- .to be placed into operative position around ing shoulders on the side ofthe. receptacle and the support.

14. In a machine of the character described, the combination of a support, a motor, an agitator driven by the 'anotor and supported from above wi'tlisufiicient' clearance to permit 'a receptacle with an open top to be placed into operative position around the agitator, means to secure the receptacle in operative position comprising an interfitting connection between the side of the receptacleand the support, and means shifted to said securing-means.

15. In a machine of the character described, the combination of a support, a motor, an agitator driven by; the motor and supported from abovev with suflicient clearance to permit a receptacle with an open top to be placed into operative position around the agitator, means to secure the receptacle 1n operative position comprising an vinterfitting connection between the side of "n the receptacle and the support, and means on the support to slidably guide the receptacle while it is manually shifted to said securing means.

16. In a machine of the character described, the combination of a stationary support, a motor mounted at the upper, end of the support, an agitator driven by the motor and supported from above with suflicient clearance to .permit a receptacle with an open top to be placed into operative position around the agitator, means to secure the receptacle in operative position comprising an interfitting connection: between the side of the receptacle and the support and a guid on the support to direct the receptacle while it is manually shifted to said securing means j '17. In a machine of the character described, the combination of a support, a motor, an agitator driven by the motor and supported from above with sufiicient clearance to permit a receptacle with an open top to be placed into operative position around the agitator, and means-to secure the receptacle in operative position comprising an intrfitting connection between the side of the receptacle and the support, and means to press the receptacle and support together 18. In a machine of the character described, the combination of a support, a motor, an agitator driven by the motor and supported from above with suflicient clearance to permit a receptacle with an open top to berplace'd into operative position around the-agitator,- and means to secure the receptacle in operative position comprising an inter-fitting connect-ion between the side of the receptacle and the support, and a spring- -pressed member engaging the inside of the.

receptacle. w

19. In a machine of the character described, the combination of a support, a.

motor, an agitator driven by the motor and supported from above with suflicient clear ance to permit a receptacle with an open top to be placed into operative position around i the agitator, and means to secure the recep-' taele in operative position comprising inter-' fitting shoulders between the side of the 20. Ina macliine of the character desupported from above Willi suflicient clearance to permit a-receptaclc with an open top to be placed into operative position around the agitator, means to secure the receptacle. in operative position comprising an interfi'tting connection between the side of the receptacle and the support, and means operated by the side of the receptacle for controlling the operation of the motor.

21. In a machine of the character described, the combination of a support, a motor, an agitator driven by the motor and supported from above with sufficient clearance to permit a receptacle with an open top to be placed into operative position around the agitator, and means to secure the reccptacle in operative position comprising an interfitting connection between the side of the receptacle and the support, and means to limit the movement of the receptacle relatively to the support in removing the receptacle.

22. In a machine of the character described, the' combination of a support, a motor, an agitator driven by themotor'and supported from above with sufficient clearance to permit a receptacle with an open top to be placed into operative position around the agitator, and means to secure the receptacle in operative position comprising an interlocking connection betweenthe side of the receptacle and the support, and means to limitthe pivotal movement of the receptacle in removing it. l I i 23. In a machine of the character "described, the combination .of a motor, a standard to theupper end of which the mo tor 'is secured, an agitator driven by the motor and supported from above with sulficient clearance to permit'a receptacle with an'open top to be placed into operative position around the agitator, and means to secure the receptacle in operative position, comprising a spring-pressed member having a portion in the path of and operated by the receptacle While it is being manually shifted to said position.

24. In a maehine of the character de scribed, the combination of a motor, a standard to the upper end of which the motor is secured, an agitator driven by the motor and supported from above with suflicient clearance-to permita receptacle with an open top 1 scribed, the combination of amotor, a. standard to the 'upper end of which. the motor is secured, an agitator driven by the motor and supported from above with sufiicient prising a pivoted spring-pressed member having a part the path of and operated 10 by the receptacle while it is being manually shifted to said position, and means to limit the pivotal movement of said member, to

limit the movemeiit of the receptacle.

. Signed at Newark, N. J this 11th day of 15 February, 1922.

RAYMOND B. Gmcnms'r. 

